The following website has a large number of clocks that update every second to show the estimated

national debt and federal budget deficit of the United States $($in the upper left corner, hightlighted in the

picture below$)$ along with numerous other financial measures. $($

www$.$usdebtclock.org$).$ At $9$:$28$ a$.$m$.($pacific

time$)$ on June $6,2014,$ the clock showed the following values.

a$.$ Go to the debt clock website. Record the current estimates. Complete the table as indicated.

b$.$ Wait at least a few seconds and go back to the debt clock. Record the new values.

c$.$ Did the estimated values change?

yes

no

d$.$ Did the rounded numbers change?

yes

no

e$.$ If you were making a calculation based on these values, would you use the un$-$rounded values

or the rounded number? Be prepared to justify your answer.

un$-$rounded value

rounded number